Alexandre Wolff

Squid is a protocol that aims at simplifying cross chain interactions and make them more accessible. The first use case tackled is cross chain swaps but the long term spectrum is much broader.

My role is to be the source of insight for conceiving and architecturing anything related to the Ethereum ecosystem and the EVM technology. That translates into smart contract development of course, but also multiple tasks on the backend that interacts with blockchains.

Restructuration of initial POC

- Review of contracts architecture and protocol security

- Refactoring of contracts code

- Creation of unit test suite

- Refactoring and optimisation of local environment launch script

- Refactoring and improvement of end to end smart contract test suite

- Architecture redesign of backend for better readability, maintainability and cooperation

- Deployed and updated contracts on 18 EVM chains

- Documentation update

Implementation of new features

- Fee collector & deposit address contracts

- Fee estimation logic on backend

- Integration with multiple protocols (Algebra/Quickswap v3, Axelar, Uniswap's permit2, CCTP, Chainflip, Thorchain, Balancer, 1inch, Kyber aggregator)

- Creation of graph model and indexer for ERC20 tokens and DEX pools

- Automation scripts for deployment and upgrade of complex contracts structure protocols

- Creation of multiple internal tools

- Calldata compression for L2

Research

- Onchain swap routing on multiple DEX

- Graph technologies in the context of shortest route building

- Calldata compression

- Multi hop bridging

- Account abstraction (ERC 4337)

Team help

- Supervised junior in writing of settlement protocol for OTC exchange on chain and improved code, fee cost, security and testing

- Regular reflexions with CTO on technical direction of protocol and news of the ecosystem for future evolutions

Communication with partners

- Consensys, Ackee and independant auditors for security audits

- Security audits review, corrections and documentation

Sovryn creates multiple defi protocols (DEX, borrowing, staking, perpetual swap, stablecoin) on top of Bitcoin, thanks to the RSK layer 2 hosting an EVM.

I am a full time member of the 15 people team working on the development of new features and improvements for the products with the scrum agile framework.

I worked on multiple projects.

Implementation of meta transactions compatibility to multiple solidity smart contracts

- Modification of the smart contract code bases for enabling them to receive meta transactions

- Creation of a GSN paymaster smart contract in solidity to enable users to pay for gas fees with an ERC 20 tokens

- Creation of a test suite for all of the new code in typescript with mocha, ethers.js and jest

- Creation of a demo javascript code base to send meta transactions for front end team

- Implementation of an upgrade mechanism of the paymaster contract

- Launch of a GSN relay

Implementation of a signature validation in the Sovryn token bridge

- Design of a secure architecture and workflow for the project

- Modification of the solidity smart contract and javascript back end code bases to produce and use signatures

- Implementation of a p2p network between the Sovryn bridge back end validators to exchange signatures with the Ataraxia library

- Creation of a test suite for all of the new code in typescript with jest

- Deployment of the updated smart contracts on BSC mainnet with hardhat

But also

- Security audit of the perpetual swap protocol solidity smart contracts

- Code review and optimisation of multiple solidity smart contracts

- Documentation of all the code I implemented and software I deployed

Privi is a company aiming at creating a more fair social media plateform, by taking advantage of web3 technologies.

As a full time member of the team, I took care of development and improvement of different parts of the technical infrastructure, and suggestion for technical directions.

- Récupération automatique de données sur des NFT sur Ethereum

- Création de ponts inter-blockchains entre Ethereum, BSC, Polygon, EOS, WAX et Hyperledger Fabric

- Implementation d'un DAO avec la bibliothèque Moloch

- Création de swaps atomiques inter-blockchains grâce à des hash time locked contracts

- Intégration Polkadot avec polkadot.js

- Création d'un mécanisme de paiements récurrents de tokens

- Intégration avec le protocole Yearn Finance

- Utilisation de Chainlink comme oracle dans un smart contract Polygon

- Création d'un contrat de dépôt inter blockchain (Polygon Hyperledger Fabric)

- Creation d'un contrat de répartition de droits d'auteur conforme à l'EIP 2981

- Intégration avec GSN (Gas Station Network) pour permettre aux utilisateurs de payer les frais de transaction avec le token ERC 20 de Privi lors des interactions avec l'application

- Implémentation d'un comportement de type Axie infinity pour un smart contrat

- Implémentations de l'EIP 2981 dans un smart contrat NFT

- Implémentation d'un factory pattern pour des contrats intelligents de financement participatif

- Création d'un protocole de contrat intelligent de répartition automatique des droits d'auteur en tant que token pour la musique financée sur la blockchain

- Création d'un listener qui met à jour une base de données à chaque fois qu'une adresse spécifique reçoit ou envoie un NFT sur Ethereum, Polygon ou Binance Smart Chain